MGM Resorts International
MX ˙ BMV ˙ US5529531015
SecurityMX:MGM / MGM Resorts International
InstitutionInterval Partners, LP
Latest Disclosed Ownership788,224 shares
Latest Disclosed Value $ 29,172,170
Interval Partners, LP ownership in MGM / MGM Resorts International

On May 15, 2026 - Interval Partners, LP filed a 13F-HR form disclosing ownership of 788,224 shares of MGM Resorts International (MX:MGM) valued at $29,172,170 USD as of March 31, 2026. The entity filed a previous 13F-HR on November 14, 2023 disclosing 0 shares of MGM Resorts International.

Interval Partners, LP has a history of taking positions in derivatives of the underlying security (MGM) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:MGM / MGM Resorts International Historical Put/Call Ratio
Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F MGM RESORTS INTERNATIONAL COM 552953101 788,224 788,224 29,172 0.7641
2023-11-14 2023-09-30 13F MGM RESORTS INTERNATIONAL COM 552953101 0 -111,681 -100.00 0 -100.00
2023-08-14 2023-06-30 13F MGM RESORTS INTERNATIONAL COM 552953101 111,681 111,681 4,905 0.1770
2023-05-15 2023-03-31 13F MGM RESORTS INTERNATIONAL COM 552953101 0 -476,708 -100.00 0 -100.00
2023-02-14 2022-12-31 13F MGM RESORTS INTERNATIONAL COM 552953101 476,708 476,708 15,984 0.9507
2019-05-15 2019-03-31 13F MGM RESORTS INTERNATIONAL COM 552953101 0 -425,561 -100.00 0 -100.00
2019-02-14 2018-12-31 13F MGM RESORTS INTERNATIONAL COM 552953101 425,561 325,561 325.56 10,324 269.90 0.5548
2018-11-14 2018-09-30 13F MGM RESORTS INTERNATIONAL COM 552953101 100,000 100,000 -76.50 2,791 -72.97 0.1139
2017-08-14 2017-06-30 13F MGM RESORTS INTERNATIONAL COM 552953101 0 -250,000 -100.00 0 -100.00
2017-05-15 2017-03-31 13F MGM RESORTS INTERNATIONAL COM 552953101 250,000 -735,868 -74.64 6,850 -75.90 0.3326
2017-02-14 2016-12-31 13F MGM RESORTS INTERNATIONAL COM 552953101 985,868 -619,880 -38.60 28,423 -32.00 1.7147
2016-11-14 2016-09-30 13F MGM RESORTS INTERNATIONAL COM 552953101 1,605,748 350,062 27.88 41,798 47.09 2.6524
2016-08-15 2016-06-30 13F MGM RESORTS INTERNATIONAL COM 552953101 1,255,686 605,686 93.18 28,416 103.90 1.9190
2016-05-16 2016-03-31 13F MGM RESORTS INTERNATIONAL COM 552953101 650,000 -629,898 -49.21 13,936 -52.08 1.2025
2016-02-16 2015-12-31 13F MGM RESORTS INTERNATIONAL COM 552953101 1,279,898 329,026 34.60 29,079 65.75 2.7500
2015-11-13 2015-09-30 13F MGM RESORTS INTERNATIONAL COM 552953101 950,872 15,826 1.69 17,544 2.81 2.2313
2015-08-14 2015-06-30 13F MGM RESORTS INTERNATIONAL COM 552953101 935,046 534,755 133.59 17,065 102.72 1.8287
2015-05-15 2015-03-31 13F MGM RESORTS INTERNATIONAL COM 552953101 400,291 -144,952 -26.58 8,418 -27.79 1.0554
2015-02-17 2014-12-31 13F MGM RESORTS INTERNATIONAL COM 552953101 545,243 379,729 229.42 11,657 209.20 1.7632
2014-11-14 2014-09-30 13F MGM RESORTS INTERNATIONAL COM 552953101 165,514 -84,486 -33.79 3,770 -42.88 0.7894
2014-08-14 2014-06-30 13F MGM RESORTS INTERNATIONAL COM 552953101 250,000 250,000 6,600 1.5194
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2023-11-14 2023-09-30 13F MGM RESORTS INTERNATIONAL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-08-14 2023-06-30 13F MGM RESORTS INTERNATIONAL COM Call 100,000 4,392 n/a n/a n/a
2021-08-16 2021-06-30 13F MGM RESORTS INTERNATIONAL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-17 2021-03-31 13F MGM RESORTS INTERNATIONAL COM Call 500,000 18,995 n/a n/a n/a
2019-05-15 2019-03-31 13F MGM RESORTS INTERNATIONAL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2019-02-14 2018-12-31 13F MGM RESORTS INTERNATIONAL COM Call 800,000 -36.00 19,408 -44.37 n/a n/a n/a
2018-11-14 2018-09-30 13F MGM RESORTS INTERNATIONAL COM Call 1,250,000 56.25 34,888 79.76 n/a n/a n/a
2017-08-14 2017-06-30 13F MGM RESORTS INTERNATIONAL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2017-05-15 2017-03-31 13F MGM RESORTS INTERNATIONAL COM Call 150,000 4,110 n/a n/a n/a
2016-08-15 2016-06-30 13F MGM RESORTS INTERNATIONAL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2016-05-16 2016-03-31 13F MGM RESORTS INTERNATIONAL COM Call 107,600 2,307 n/a n/a n/a
2016-02-16 2015-12-31 13F MGM RESORTS INTERNATIONAL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-11-13 2015-09-30 13F MGM RESORTS INTERNATIONAL COM Call 250,000 4,613 n/a n/a n/a
2015-08-14 2015-06-30 13F MGM RESORTS INTERNATIONAL COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2015-05-15 2015-03-31 13F MGM RESORTS INTERNATIONAL COM Call 243,000 -25.23 5,110 -26.46 n/a n/a n/a
2015-02-17 2014-12-31 13F MGM RESORTS INTERNATIONAL COM Call 325,000 29.28 6,949 21.34 n/a n/a n/a
2014-11-14 2014-09-30 13F MGM RESORTS INTERNATIONAL COM Call 251,400 746.46 5,727 719.31 n/a n/a n/a
2014-02-14 2013-12-31 13F MGM RESORTS INTERNATIONAL COM Call 29,700 699 n/a n/a n/a
Disclosed Put Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share Price Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2024-02-14 2023-12-31 13F MGM RESORTS INTERNATIONAL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2023-11-14 2023-09-30 13F MGM RESORTS INTERNATIONAL COM Put 1,000 3,676 n/a n/a n/a
2020-08-14 2020-06-30 13F MGM RESORTS INTERNATIONAL COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2020-05-15 2020-03-31 13F MGM RESORTS INTERNATIONAL COM Put 491,900 5,804 n/a n/a n/a
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.